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###### Department of Transportation

###### Federal Aviation Administration

          - 14 CFR Part 39
          - [Docket No. FAA-2021-0565; Project Identifier 2018-SW-111-AD]
          - RIN 2120-AA64

# AGENCY:

Federal Aviation Administration (FAA), DOT.

# ACTION:

Notice of proposed rulemaking (NPRM).

# SUMMARY:

The FAA proposes to adopt a new airworthiness directive (AD) for certain Leonardo S.p.a Model AW189 helicopters. This proposed AD was prompted by a report of an incorrect connection of the inflation hoses to the tee manifolds of the inflation line on the emergency flotation system (EFS) assembly. This proposed AD would require visually inspecting the yellow sleeves and hoses installed on each EFS assembly and depending on the inspection results, accomplishing the corrective actions in the applicable service information as specified in a European Aviation Safety Agency (now European Union Aviation Safety Agency) (EASA) AD, which is proposed for incorporation by reference (IBR). The FAA is proposing this AD to address the unsafe condition on these products.

# DATES:

The FAA must receive comments on this proposed AD by August 30, 2021.

# ADDRESSES:

You may send comments, using the procedures found in 14 CFR 11.43 and 11.45, by any of the following methods:
      -  Federal eRulemaking Portal:                          Go to                          https://www.regulations.gov.                          Follow the instructions for submitting comments.                    
      -  Fax:                          (202) 493-2251.                    
      -  Mail:                          U.S. Department of Transportation, Docket Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New Jersey Avenue SE, Washington, DC 20590.                    
      -  Hand Delivery:                          Deliver to Mail address above between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays.                    

                        For material that is proposed for IBR in this AD, contact EASA, Konrad-Adenauer-Ufer 3, 50668 Cologne, Germany; telephone +49 221 8999 000; email                         *ADs@easa.europa.eu;*                         internet                         *www.easa.europa.eu.*                         You may find this material on the EASA website at                         *https://ad.easa.europa.eu.*                         You may view this material at the FAA, Office of the Regional Counsel, Southwest Region, 10101 Hillwood Pkwy., Room 6N-321, Fort Worth, TX 76177. For information on the availability of this material at the FAA, call (817) 222-5110. It is also available at                         *https://www.regulations.gov*                         by searching for and locating Docket No. FAA-2021-0565.                    

## Examining the AD Docket

                    You may examine the AD docket at                     *https://www.regulations.gov*                     by searching for and locating Docket No. FAA-2021-0565 or in person at Docket Operations between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The AD docket contains this NPRM, the EASA AD, any comments received, and other information. The street address for Docket Operations is listed above.                

# FOR FURTHER INFORMATION CONTACT:

                        Darren Gassetto, Aerospace Engineer, COS Program Management Section, Operational Safety Branch, Compliance & Airworthiness Division, FAA, 1600 Stewart Ave., Suite 410, Westbury, NY 11590; telephone (516) 228-7323; email                         *Darren.Gassetto@faa.gov.*

# SUPPLEMENTARY INFORMATION:

## Comments Invited

                    The FAA invites you to send any written relevant data, views, or arguments about this proposal. Send your comments to an address listed under                     **ADDRESSES**                    . Include “Docket No. FAA-2021-0565; Project Identifier 2018-SW-111-AD” at the beginning of your comments. The most helpful comments reference a specific portion of the proposal, explain the reason for any recommended change, and include supporting data. The FAA will consider all comments received by the closing date and may amend this proposal because of those comments.                

                    Except for Confidential Business Information (CBI) as described in the following paragraph, and other information as described in 14 CFR 11.35, the FAA will post all comments received, without change, to                     *https://www.regulations.gov,*                     including any personal information you provide. The agency will also post a report summarizing each substantive verbal contact received about this NPRM.                

## Confidential Business Information

                    CBI is commercial or financial information that is both customarily and actually treated as private by its owner. Under the Freedom of Information Act (FOIA) (5 U.S.C. 552), CBI is exempt from public disclosure. If your comments responsive to this NPRM contain commercial or financial information that is customarily treated as private, that you actually treat as private, and that is relevant or responsive to this NPRM, it is important that you clearly designate the submitted comments as CBI. Please mark each page of your submission containing CBI as “PROPIN.” The FAA will treat such marked submissions as confidential under the FOIA, and they will not be placed in the public docket of this NPRM. Submissions containing CBI should be sent to Darren Gassetto, Aerospace Engineer, COS Program Management Section, Operational Safety Branch, Compliance & Airworthiness Division, FAA, 1600 Stewart Ave., Suite 410, Westbury, NY 11590; telephone (516) 228-7323; email                     *Darren.Gassetto@faa.gov.*                     Any commentary that the FAA receives that is not specifically designated as CBI will be placed in the public docket for this rulemaking.                

## Background

EASA, which is the Technical Agent for the Member States of the European Union, has issued EASA AD 2018-0279, dated December 14, 2018 (EASA AD 2018-0279), to correct an unsafe condition for Leonardo S.p.a. (formerly Finmeccanica Helicopter Division, AgustaWestland) Model AW189 helicopters.

This proposed AD was prompted by a report of a discrepancy found during a maintenance inspection related to the connection of the inflation hoses to the helicopter tee manifolds. EASA states the yellow sleeve on the right-hand (RH) aft EFS assembly was installed on the straight-to-straight hose instead of the straight-to-45 degree hose, which caused the two hoses to be incorrectly connected to the tee manifolds at the inflation line. The FAA is proposing this AD to prevent partial inflation of the flotation bags which could prevent a timely egress from the helicopter and consequent injury to helicopter occupants. See EASA AD 2018-0279 for additional background information.

## Related Service Information Under 1 CFR Part 51

                    EASA AD 2018-0279 requires a visual inspection of each affected EFS assembly for correct installation of the yellow sleeves and proper connection of the inflation hoses to the float assembly and the bottle assembly. Depending on these inspection results, if an incorrect installation of the yellow sleeve or an incorrect connection of the inflation hoses is detected, EASA AD 2018-0279 requires, before next flight, removing incorrectly installed yellow sleeves, and incorrectly installed hoses, restoring markings on re-installed yellow sleeves, and re-connecting or re-installing hoses                           ( print page 37259)                        in accordance with the applicable service information. EASA AD 2018-0279 also prohibits installing any affected EFS assembly on any helicopter.                

                    This material is reasonably available because the interested parties have access to it through their normal course of business or by the means identified in the                     **ADDRESSES**                     section.                

## FAA's Determination

These products have been approved by EASA and are approved for operation in the United States. Pursuant to the FAA's bilateral agreement with the European Union, EASA has notified the FAA about the unsafe condition described in its AD. The FAA is proposing this AD after evaluating all known relevant information and determining that the unsafe condition described previously is likely to exist or develop on other helicopters of the same type design.

## Proposed AD Requirements in This NPRM

This proposed AD would require accomplishing the actions specified in EASA AD 2018-0279, described previously, as incorporated by reference, except for any differences identified as exceptions in the regulatory text of this proposed AD and except as discussed under “Differences Between this Proposed AD and the EASA AD.”

## Explanation of Required Compliance Information

                    In the FAA's ongoing efforts to improve the efficiency of the AD process, the FAA developed a process to use certain civil aviation authority (CAA) ADs as the primary source of information for compliance with requirements for corresponding FAA ADs. The FAA has been coordinating this process with manufacturers and CAAs. As a result, the FAA proposes to incorporate EASA AD 2018-0279 by reference in the FAA final rule. This proposed AD would, therefore, require compliance with EASA AD 2018-0279 in its entirety through that incorporation, except for any differences identified as exceptions in the regulatory text of this proposed AD. Using common terms that are the same as the heading of a particular section in EASA AD 2018-0279 does not mean that operators need comply only with that section. For example, where the AD requirement refers to “all required actions and compliance times,” compliance with this AD requirement is not limited to the section titled “Required Action(s) and Compliance Time(s)” in EASA AD 2018-0279. Service information specified in EASA AD 2018-0279 that is required for compliance with it will be available at                     *https://www.regulations.gov*                     by searching for and locating Docket No. FAA-2021-0565 after the FAA final rule is published.                

## Differences Between This Proposed AD and the EASA AD

EASA AD 2018-0279 applies to Model AW189 helicopters, all serial numbers (S/Ns), whereas this proposed AD would only apply to Model AW189 helicopters with EFS assemblies having certain part-numbered aft assemblies with certain S/Ns installed.

## Costs of Compliance

The FAA estimates that this AD, if adopted as proposed, would affect 4 helicopters of U.S. Registry. Labor rates are estimated at $85 per work-hour. Based on these numbers, the FAA estimates the following costs to comply with this proposed AD.

Visually inspecting each EFS assembly would take about 0.75 work-hours for an estimated cost of $64 per inspection and $260 for the U.S. fleet.

Performing the corrective actions on each EFS assembly would take about 1.25 work-hours for an estimated cost of $113 per EFS assembly.

## Authority for This Rulemaking

Title 49 of the United States Code specifies the FAA's authority to issue rules on aviation safety. Subtitle I, section 106, describes the authority of the FAA Administrator. Subtitle VII: Aviation Programs, describes in more detail the scope of the Agency's authority.

The FAA is issuing this rulemaking under the authority described in Subtitle VII, Part A, Subpart III, Section 44701: General requirements. Under that section, Congress charges the FAA with promoting safe flight of civil aircraft in air commerce by prescribing regulations for practices, methods, and procedures the Administrator finds necessary for safety in air commerce. This regulation is within the scope of that authority because it addresses an unsafe condition that is likely to exist or develop on products identified in this rulemaking action.

## Regulatory Findings

The FAA determined that this proposed AD would not have federalism implications under Executive Order 13132. This proposed AD would not have a substantial direct effect on the States, on the relationship between the national Government and the States, or on the distribution of power and responsibilities among the various levels of government.

For the reasons discussed above, I certify this proposed regulation:

(1) Is not a “significant regulatory action” under Executive Order 12866,

(2) Would not affect intrastate aviation in Alaska, and

(3) Would not have a significant economic impact, positive or negative, on a substantial number of small entities under the criteria of the Regulatory Flexibility Act.

# List of Subjects in 14 CFR Part 39

      - Air transportation
      - Aircraft
      - Aviation safety
      - Incorporation by reference
      - Safety

## The Proposed Amendment

Accordingly, under the authority delegated to me by the Administrator, the FAA proposes to amend 14 CFR part 39 as follows:

# PART 39—AIRWORTHINESS DIRECTIVES

1. The authority citation for part 39 continues to read as follows: 

Authority:49 U.S.C. 106(g), 40113, 44701.

§ 39.13 

2. The FAA amends § 39.13 by adding the following new airworthiness directive: 

**Leonardo S.p.a.:**                         Docket No. FAA-2021-0565; Project Identifier 2018-SW-111-AD.                    

## (a) Comments Due Date

The FAA must receive comments on this airworthiness directive (AD) by August 30, 2021.

## (b) Affected ADs

None.

## (c) Applicability

This AD applies to Leonardo S.p.a. Model AW189 helicopters, certificated in any category, with an affected emergency flotation system (EFS) assembly as defined in European Aviation Safety Agency (now European Union Aviation Safety Agency) (EASA) AD 2018-0279, dated December 14, 2018 (EASA AD 2018-0279).

## (d) Subject

Joint Aircraft Service Component (JASC) Codes: 3212, Emergency Flotation Section; 2560, Emergency Equipment.

## (e) Unsafe Condition

                        This proposed AD was prompted by a report of an incorrect connection of the inflation hoses to the tee manifolds of the inflation line on the EFS assembly. The FAA is issuing this AD to detect incorrect installation of the inflation hoses on the EFS assembly. The unsafe condition, if not addressed, could result in partial inflation of                               ( print page 37260)                            the flotation bags in a ditching event, preventing a timely egress from the helicopter and consequent injury to the helicopter occupants.                    

## (f) Compliance

Comply with this AD within the compliance times specified, unless already done.

## (g) Requirements

Except as specified in paragraph (h) of this AD: Comply with all required actions and compliance times specified in, and in accordance with, EASA AD 2018-0279.

## (h) Exceptions to EASA AD 2018-0279

(1) Where EASA AD 2018-0279 requires compliance in terms of flight hours, this AD requires using hours time-in-service.

(2) Where EASA AD 2018-0279 requires compliance from its effective date, this AD requires using the effective date of this AD.

(3) Where the service information required by EASA AD 2018-0279 specifies recording compliance with the service bulletin in the helicopter logbook, this AD does not include that requirement.

(4) Where EASA AD 2018-0279 identifies all Model AW189 helicopters, all serial numbers in the applicability, this AD is only applicable to Model AW189 with an affected EFS assembly as defined in the definitions paragraph of the EASA AD.

(5) This AD does not require the “Remarks” section of EASA AD 2018-0279.

## (i) No Reporting Requirement

Although the service information referenced in EASA AD 2018-0279 specifies to submit certain information to the manufacturer, this AD does not include that requirement.

## (j) Alternative Methods of Compliance (AMOCs)

                        (1) The Manager, International Validation Branch, FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. In accordance with 14 CFR 39.19, send your request to your principal inspector or local Flight Standards District Office, as appropriate. If sending information directly to the manager of the International Validation Branch, send it to the attention of the person identified in paragraph (k)(2) of this AD. Information may be emailed to:                         *9-AVS-AIR-730-AMOC@faa.gov.*

(2) Before using any approved AMOC, notify your appropriate principal inspector, or lacking a principal inspector, the manager of the local flight standards district office/certificate holding district office.

## (k) Related Information

                        (1) For EASA AD 2018-0279, contact EASA, Konrad-Adenauer-Ufer 3, 50668 Cologne, Germany; telephone +49 221 8999 000; email                         *ADs@easa.europa.eu;*                         internet                         *www.easa.europa.eu.*                         You may find this EASA AD on the EASA website at                         *https://ad.easa.europa.eu.*                         You may view this material at the FAA, Office of the Regional Counsel, Southwest Region, 10101 Hillwood Pkwy., Room 6N-321, Fort Worth, TX 76177. For information on the availability of this material at the FAA, call (817) 222-5110. This material may be found in the AD docket at                         *https://www.regulations.gov*                         by searching for and locating Docket No. FAA-2021-0565.                    

                        (2) For more information about this AD, contact Darren Gassetto, Aerospace Engineer, COS Program Management Section, Operational Safety Branch, Compliance & Airworthiness Division, FAA, 1600 Stewart Ave., Suite 410, Westbury, NY 11590; telephone (516) 228-7323; email                         *Darren.Gassetto@faa.gov.*

                        (3) For service information identified in this AD, contact Leonardo S.p.A. Helicopters, Emanuele Bufano, Head of Airworthiness, Viale G.Agusta 520, 21017 C.Costa di Samarate (Va) Italy; telephone +39-0331-225074; fax +39-0331-229046; or at                         *https://www.leonardocompany.com/​en/​home.*                         You may view this material at the FAA, Office of the Regional Counsel, Southwest Region, 10101 Hillwood Pkwy., Room 6N-321, Fort Worth, TX 76177. For information on the availability of this material at the FAA, call (817) 222-5110.                    

Issued on July 9, 2021.

Gaetano A. Sciortino,

Deputy Director for Strategic Initiatives, Compliance & Airworthiness Division, Aircraft Certification Service.

[FR Doc. 2021-15021 Filed 7-14-21; 8:45 am]

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